Self-closing valve



March 29, 1932. PRQTZVER I 1,851,062

SELF CLOS ING VALVE Filed Sept. 11. 1930 Kg/III:

INVENTOR FRITZ PROTZER. BY

ATTORNEY Patented Mar. 29, 1932 FRITZ rno'rznn, or nonwoon, OHIO SELF-CLOSING VALVE Application-filed September 11, 1930. Serial No. 481,151.

My invention relates to a new and useful improvement in a self closing valve adapted v to be interposed in a fluid conductor for controlling the flow of fluid through the eonductor.

It is especially useful in connection with the control of the flow of fluid at periodic intervals or short intervals, such as flushing closet bowls and the like. When used in connection with the flushing of closet bowls,

the device has proven most efiicient, supplying' the necessary flow of water to the closet bowl to effect the desired siphonage, while at the same time eliminating the noise incident to the flushing operation and permitting a leakage of fluid at a reduced volume to permit the trap in the bowl to seal itself prior to complete closing of the valve.

This invention is an improvement on the device disclosed in Patent Number 1,741,250

granted to me December 31, 1929.

It is an object of the present invention to provide a self-closing valve of this type which will attain the advantages mentione It is a further object to provide the valve with a guard for limiting the outward movement of the valve closer. V

A further object is to provide the valve with means for reducing the flow of liquid prior to the closing of the valve, permitting sealing of the trap in the closet bowl.

A still further objectis to provide means for keeping the refill pipe clean and slowing up the refill prior to the complete closing of the valve.

The invention will be further readily understood from the following description and claim, and from the drawings in which latter:

ti on, partly broken away;

Fig. 2 is a vertical sectional view, the line 2'2 of Fig. 1 and partly Fig. 3 is a horizontal section, taken on the irregular line 3-3 of Fig. 2; and

Fig. 4 is a detail section, taken in the plane of the line 44 of Fig. 2.

The invention comprises a. semi-spherical body portion 11, provided with a downwardly taken on broken Fig. 1 is a front elevation of the invenproj ectin g neck 12 exteriorlythreaded to form connection with a pipe or conductor 13.

A semi-spherical bo as at 15 to form a internal thr threads 18 on theupper end spherical b0 The lower tending ribs cal wall 26 to the outer body,

dy 14 is outwardly offset flange 16 provided with eads 17 arranged to engage from the b0 body of lower semi- 11. A neck 19' extends upe body 14 and has threaded pipe or conductor 21.

dy 14 is a at 23 formed at its portion has inwardly ex- 25 connecting an inner spherifor fluid space 27 between the walls. is provided with a stem 29 and a of the valve is arranged to seat The head 31 on a valve seat 32 in the inne stem extends through an aper outer wall for guldlng 34 is receive posed between the handle the valve.

forming a A valve 28 handle 30.

r wall and the ture 33 in the A spring d about the stem and is interan d' the outer wall to normally maintain the valve in closed position.

The upper edge of the lower, spherical body semi-spherical forms a clamping flexlble member preferably made of rubber, has an extending flange between a flange 38 on a tector 39'and the clamping face 35.

from the outer 40 between said members. ided with apertures 41 ass therethrough. holes in the protector is form a fluid This protector is prov for 1 permitting fluid to p Screws 42 received through flanges of the protector and flexible member are threaded =A vlave 45is provided 46, which may to seat on the va an upwardly exten semi-sph spaced space into the ribs 25.

be of hard rubber ose of partially closing the valve to full closing ofthe' valve, the flow of liquid through inner, semifa'ce 35'. A 36, which is outwardly 37 arranged to be clamped erical pro- The wall to with a conical face arranged lve seat23. The valve has ding boss 47 for the purport P1101 thereby reducing the pipe fora short interval before the valve completely d over the shank an closes. The valve is provided with a reduced its opposite end. The member d clamped pin, whereby the tube 52 will be climbing 'ofthe guide. pin for reducing the flow of closing of the valve 45. The on its seat 23 completely shuts off the flow between the valve and washer 49 by means of a nut 50 threaded over the threaded end of the shank.

The valve is provided with a central bore 51 and has a tube 52 forming an extension of said bore extending upwardly therefrom. The upper end of the neck 19 has a cross rib 53 therein with: fluid. spaces 54; at each side thereof. A guide 55 has a threaded end 56 arranged to be threaded into a threaded hole pin tapers as at 57 to the straight shank 58 and has a tapered end 59. This guide pin acts as a guide for the valve and also keeps the passage clean. The guide is adjustable for the purpose of decreasing the space between the tube and the tapered portion of the guide the flow of fluid to the inner chamber 60 of the valve may be regulated for slowing up the valve just prior to closing.

In the operation of the invention, the parts are in the position shown in full lines in Fig. 2 with the space 60 filled with fluid. Vhen it is desired to flush the closet bowl, the hanclle 30 is pushed inwardly releasing the valve 28 from its seat 32, thereby permitting the fluid within the chamber 60 to flow through the port 61 and pipe 13. The fluid leaving the chamber 60 together with the pressure of the fluid on the head of the valve will cause the flexible member 36 to collapse, thus moving the valve 4-5 shown in dotted downwardly to lines in Fig. 2.

As soonas the valve 45' leaves its seat the fluid will flow under pressure from the pipe 21 and pass through the" apertures 41 and also the space 62 between the protector and the boss 22, into the space 40, thence into the the position space 27 and through the outlet 61. When the pressure on the handle 30 is released, the

spring 34 will cause the valve 28 to close.

The tube 52 having descended on the guide 55 permits the fluid. to flow through the tube 52 and the bore 51. for refilling the chamber 60. As the valve gradually ascends, the boss 47 entering the valve opening reduces the flow of liquid through the pipe13, thereby stopping the flushing operationrand causes the usual trap in and fill to the desired level. Concurrent to the reduced flow of liquid to the'closet bowl, on the taper 57 liquid to the chamber 60 for slowing up the of liquid to the closet bowl, and the pressure of the fluid within the chamber 60 maintains the valve in closed position. The protector 39 prevents undue expansionof the flexible member which I have found will increase the life of the valve many times. over valves without this protecting member.

Having thus fully described my invention in the cross rib. Below the threads thegi-iide the closetbowl to seal itself valve 45seating nssroee what I claim as new and desire to secure by Letters Patent, is:

A valve of the class described comprising a substantially spherical container having a pair of metallic sections threaded together at their open ends, one of said sections having an inlet opening and the other having an outlet opening, a valve seat extending inwardly of said container at said inlet opening, a secondary pair of semi-spherical members spaced within said first named spherical members and joined thereto by spaced apart ribs, one of said inner semi-spherical members provided with fluid passages and the other with a manual valve, a semi-spherical flexible member arranged adjacent to said member provided with fluid passages, said flexible member clamped between said. secondary members, a valve mounted on said flexible member and adapted upon distensionof said flexible member for engaging in said seat and. closing communication of said container with said inlet opening, said last named valve provided with an extension for partially closing said valve prior tothe seatv ing of said valve, a tube extending upwardly from said valve and an adjustable guide positioned in said intake port and extending through said tube and. valve, said guide provided with a shank tapered adJacent the-- upper end and lower endfor changing the volume of fluid passing through said tube. In testimony whereof I have hereunto signed my name. I l

' FRITZ PROTZER. 

